[Bug tree-optimization/90838] Detect table-based ctz implementation

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90838

--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Jan 10 21:10:03 2020
New Revision: 280140

URL: https://gcc.gnu.org/viewcvs?rev=280140&root=gcc&view=rev
Log:
        PR tree-optimization/90838
        * tree-ssa-forwprop.c (simplify_count_trailing_zeroes): Use
        SCALAR_INT_TYPE_MODE instead of TYPE_MODE as operand of
        CTZ_DEFINED_VALUE_AT_ZERO.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-ssa-forwprop.c